#xm_cent{
    width: auto;
}

#xm_right{
    float: left;
    width: auto;
    height: 800px;
}
#xm_left_top{
    float: left;
    width: 200px;
    height: 800px;
}
#xm_left_img{
    top: 80px;
    right: 80px;
    width: 50px;
    height: 50px;
}
#xm_login{
    position: absolute;
    top: 160px;
    right: 737px;
    width: 500px;
    height: 430px;
    text-align: center;
    background-color: #fdfdfd;
}
#xm_account{
    margin-bottom: 17px;
    width: 350px;
    height: 55px;
}
#xm_password{
    margin-top: 20px;
    /* margin-bottom: 0px; */
    width: 350px;
    height: 55px;
}
#xm_checkbox{
    width: 30px;
    height: 30px;
}
#but_denglu{
    margin-top: 15px;
    margin-bottom: 20px;
    width: 350px;
    height: 55px;
    background-color: sandybrown;
    color: #fdfdfd;
    outline: none;
}
#xm_right_right{
    position: absolute;
    top: 20px;
    right: 0px;
    width: 263px;
    height: 40px;
}
input{
    background-color: #F5F5F5;
    border: 0px;
}
a{
    text-decoration: none;
}